The EBL is pretty much plug and play. Pull your old ECM and plug it in (may have to repin a couple wires). The EBL is designed to improve performance on any stock or modified engine, including NO2 and boost. You do need to take the time to learn how it works and program it. If you don't wanna take the time to do that, maybe it's not for you. If you wanna get the most out of all your work performed so far, maybe it is for you.Why do I need all that extra stuff on their website programed into my ECU? Like, mount it in the dash, plug it in, turn the key. Simple.
You asked "Which Computer do i need"